package com.tyme.rabbyung

import com.tyme.AbstractTyme
import com.tyme.culture.Zodiac
import kotlin.jvm.JvmStatic

/**
 * 藏历月，仅支持藏历1950年十二月至藏历2050年十二月
 *
 * @author 6tail
 */
class RabByungMonth: AbstractTyme {
    /**
     * 藏历年
     */
    private var year: RabByungYear

    /**
     * 月
     */
    private var month: Int

    /**
     * 是否闰月
     */
    private var leap: Boolean

    /**
     * 位于当年的索引，0-12
     */
    private var indexInYear: Int

    constructor(year: RabByungYear, month: Int): super() {
        require(month in -12 .. 12 && month != 0) { "illegal rab-byung month: $month" }
        val y: Int = year.getYear()
        require(y in 1950 .. 2050) { "rab-byung year $y must between 1950 and 2050" }
        var m = month
        var leap = false
        if (month < 0) {
            m = -m
            leap = true
        }
        require(!(y == 1950 && m < 12)) { "month $month must be 12 in rab-byung year $y" }
        val leapMonth: Int = year.getLeapMonth()
        require(!(leap && m != leapMonth)) { "illegal leap month $m in rab-byung year $y" }
        this.year = year
        this.month = m
        this.leap = leap
        // 位于当年的索引
        var index = m - 1
        if (leap || (leapMonth in 1..<m)) {
            index += 1
        }
        indexInYear = index
    }

    /**
     * 从藏历年月初始化
     *
     * @param year  藏历年
     * @param month 藏历月，闰月为负
     */
    constructor(year: Int, month: Int): this(RabByungYear.fromYear(year), month)

    constructor(rabByungIndex: Int, element: RabByungElement, zodiac: Zodiac, month: Int):
            this(RabByungYear.fromElementZodiac(rabByungIndex, element, zodiac), month)

    /**
     * 年
     *
     * @return 年
     */
    fun getYear(): Int {
        return year.getYear()
    }

    /**
     * 月
     *
     * @return 月
     */
    fun getMonth(): Int {
        return month
    }

    /**
     * 月
     *
     * @return 月，当月为闰月时，返回负数
     */
    fun getMonthWithLeap(): Int {
        return if (leap) -month else month
    }

    /**
     * 位于当年的索引(0-12)
     *
     * @return 索引
     */
    fun getIndexInYear(): Int {
        return indexInYear
    }

    /**
     * 是否闰月
     *
     * @return true/false
     */
    fun isLeap(): Boolean {
        return leap
    }

    /**
     * 名称
     *
     * @return 名称
     */
    override fun getName(): String {
        return (if (leap) "闰" else "") + NAMES[month - 1]
    }

    /**
     * 别名
     *
     * @return 别名
     */
    fun getAlias(): String {
        return (if (leap) "闰" else "") + ALIAS[month - 1]
    }

    override fun toString(): String {
        return year.toString() + getName()
    }

    override fun next(n: Int): RabByungMonth {
        if (n == 0) {
            return fromYm(getYear(), getMonthWithLeap())
        }
        var m: Int = indexInYear + 1 + n
        var y: RabByungYear = year
        if (n > 0) {
            var monthCount: Int = y.getMonthCount()
            while (m > monthCount) {
                m -= monthCount
                y = y.next(1)
                monthCount = y.getMonthCount()
            }
        } else {
            while (m <= 0) {
                y = y.next(-1)
                m += y.getMonthCount()
            }
        }
        var leap = false
        val leapMonth: Int = y.getLeapMonth()
        if (leapMonth > 0) {
            if (m == leapMonth + 1) {
                leap = true
            }
            if (m > leapMonth) {
                m--
            }
        }
        return fromYm(y.getYear(), if (leap) -m else m)
    }

    /**
     * 首日
     *
     * @return 藏历日
     */
    fun getFirstDay(): RabByungDay {
        return RabByungDay(this, 1)
    }

    /**
     * 本月的藏历日列表
     *
     * @return 藏历日列表
     */
    fun getDays(): List<RabByungDay> {
        val l: MutableList<RabByungDay> = ArrayList()
        val missDays: List<Int> = getMissDays()
        val leapDays: List<Int> = getLeapDays()
        for (i in 1 until 31) {
            if (missDays.contains(i)) {
                continue
            }
            l.add(RabByungDay(this, i))
            if (leapDays.contains(i)) {
                l.add(RabByungDay(this, -i))
            }
        }
        return l
    }

    /**
     * 当月天数
     *
     * @return 数量
     */
    fun getDayCount(): Int {
        return 30 + getLeapDays().size - getMissDays().size
    }

    /**
     * 特殊日子列表，闰日为正，缺日为负
     *
     * @return 特殊日子列表
     */
    fun getSpecialDays(): List<Int> {
        val l: MutableList<Int> = ArrayList()
        val days: IntArray = DAYS.get(getYear() * 13 + getIndexInYear()) ?: return l
        for (d in days) {
            l.add(d)
        }
        return l
    }

    /**
     * 闰日列表
     *
     * @return 闰日列表
     */
    fun getLeapDays(): List<Int> {
        val l: MutableList<Int> = ArrayList()
        val days: List<Int> = getSpecialDays()
        for (d in days) {
            if (d > 0) {
                l.add(d)
            }
        }
        return l
    }

    /**
     * 缺日列表
     *
     * @return 缺日列表
     */
    fun getMissDays(): List<Int> {
        val l: MutableList<Int> = ArrayList()
        val days: List<Int> = getSpecialDays()
        for (d in days) {
            if (d < 0) {
                l.add(-d)
            }
        }
        return l
    }

    override fun equals(other: Any?): Boolean {
        return other is RabByungMonth && toString() == other.toString()
    }

    override fun hashCode(): Int {
        return super.hashCode()
    }

    companion object {
        val NAMES: Array<String> = arrayOf("正月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月")
        val ALIAS: Array<String> = arrayOf("神变月", "苦行月", "具香月", "萨嘎月", "作净月", "明净月", "具醉月", "具贤月", "天降月", "持众月", "庄严月", "满意月")

        protected val DAYS: MutableMap<Int, IntArray> = HashMap()

        init {
            var y = 1950
            var m = 11
            val years: Array<String> = "2c>,182[>1:2TA4ZI=n1E2Bk1J2Ff3Mk503Oc62g=,172^>1:2XA1>2UE2Bo1I2Fj3Lo62Fb3Mf5,03N^72b=1:2]A1>2ZF1B2VI2Em1K2Fe,2Lh1R3Na603P\\:172Y>1;2UB2=m2Dq1J2Eh,2Kl1Q3Me603Pa:172^>1;2YA2=p1C2UI,2Dk2Jp3QEc3Mi603Pf:3L[72b?1:2]A1<2UB2XH,2Cn1I2Ei1L2Ie1Q3Na703Q\\:2`@1;2XA,4\\H;m1B2TI2Em1L2Ij1Q3Nf603Q`903QW:,2[@1;2TB2XI1E4TMAh2Io3RFe3Mj603Pc803Q[;,2^?1;2WA2>q1E2Bm1I2Fi1M2Hc3Of70,3P^82a>1:2[A1>2WE1B2TI2Fm1L2Hf3Ni6,03Oa703PZ:3`A62V>4]F;q1B4YJ>l2Eq1L2Gi3Ml5,03Nd603Q_9172[>1;2XB2>p1E2VK2Fl,1K2Fc3Mh603Pc9172`>1;2\\B1>2UD2=j2En,1J2Fg3Mm62Ib3Pj;3M_703R[:2`B1=2YB2=n,1C2TI2Fk1L2Ig1P3Nd703Q_:152X<2[A,2<q1B2WI2Ep1L2Il1Q3Ni703Qc9152[:2^@,1;2WB2>o1E2Bk1I2Fh1M2Ib3Pf803R^9,2a?1;2ZA1>2UE2Bp1I2Fl1M2If3Oi80,3Pa803QY:2^A1>2ZE1B4WJ>j2Fp1M2Hi1N2H`,3Od703Q]:162Y>1;2VB2?o1E4VM@h2Gl1M,2Hd3Ng603Qa9172^>1;2ZB1?2UE2@l2Fo1L,2Gg3Mk62H`3Pf:172c?3QY;2_B1>2YD2?o1E,2TK2Fj1M2Ie1P3Mb703R^;172X=2\\C1>,2TD2WJ2Fn1L2Ij1P3Ng703Rb:162[<2_B1=,2VC2>m1E4TMAh2Io3QFe3Nl82Ja3Qf:152_;0,3RU<2ZB1>2TE2Bn1I2Fj1M2Je3Pk:2K^3Ra:,03RY;2]A1>2XE1B2TI2Fo1M2Ii1P2Ka3Qd8,03R]:3bB62W>4]F:q1B2?n1F4VNAh2Il1O2Jd,3Pg803Q`:162\\=1;2XB1?2TF2Bl2Ho1N,2Ig3Nk703Qd9162`>1;2]B1?2XE2Ao1G2TM,2Hj1M2Id1P3M_603R\\;172W>2\\E1@2TE,2?i2Gm1M2Ih1P3Md603Ra;172[=28q1?2WD,2?m2Fq1M2Il1P3Mi72I^3Re:162_<172W=,2ZC2?q1E2Bk1I2Fh1M2Jd1Q3M^52b;16,2Y<2]B1>2VE2Bp1I2Fm1M2Jh1Q2Lb3Re:15,2\\;3aC62U>2[E1B4WJ>k1F4TNBg2Jl1P2Le3Qh9,03R`:172Z=1:2VB2?q1F2Bk2Ip1P2Jg,1P2J_3Qc:162^=1;2[B1?2WF2Bo1H2Bg2Ij,1O2Jc3Qg:3L\\62c>3QY;3aC72V?2[F1A2TG2Bj,2Hm1N2Jg1P3Mb603R_;182Z>1:2T@2WF2Am,2Gp1M2Ik1P3Mg603Rc;172^>192W?2ZE,2@p1F2Bj2Io3QEe1M2Jb1Q3M]72b=182Z>,2]D1?2VE2Bn1I2Fk1M2Jg1Q3Ma62e<172]=,172U>2YE1B2UI2Fp1N2Jk1Q3Me503M\\6,2`<172Y>3_F:2TB2?n1F2Cj2Jo3QDc2Lh1R,3L_52c;172]=1:2XB1?2UF2Cn1I2Eg2Kk1P,2Lb3Rf;162a=1:2]B1?2ZF1B2TH2Dj2Jm,1O2Kf1Q3M`603Q\\;182Y?2;q1A2WH2Cm,2Hq1O2Ji1P3Me603Qa;182]>1:2WA2[G2Ap,1G2Bi2Im1P3Mi72I_3Qf;3N\\72Eh1:2Z?29o,1@2UF2Bm1I2Fh1M2Je1Q3N`72f?3PY92]>19,2U?2YF2Bq1I2Fm1M2Jj1Q3Nd603O]72`=,182X?4]F:o1B4WI=k1F4UNCi2Jn3REc3Mh503N`6,2c<182\\>1:2VA2?q1F2Cm1J2Fg2Lk1R3Mc5,2f<172`=1:2[A1?2XF2Cq1I2Ek2Kn1R,2Lf1R3N_62d>3PZ:3aC72W?2;p1B2WI2Dn1J,2De2Ki1Q3Mc603Q_:182\\?1;2VB2<m2Cq1I,2Dh2Jl1P3Mg603Qd;182`?1;2ZA2<p1B,2UH2Cl1I2Ef3Mm82Jc1Q3N_703QY:2]@1;2UA,2XG2Bp1I2Fk1M2Jh1Q3Nc703Q]92`?1:,2X@4\\G:n1B2VI2Fp1M2Jl1R3Ng603P`82d>,192[?1;2UA2>o1F2Ck1J2Gg3Mk603Oc70,3OZ82_>1:2YA1?2VF2Cp1J2Fj1M2Gc3Nf5,03O^72b>1:2^B1?4[G;n1C2VJ2Fn1L2Gf,3Mi503Nb603Q]:172Y?1<2UB2>m2Eq1K2Fi,2Kl1R3Mf603Qa:182^?1;2YB2>q1D2VJ,2Dl1J2Fe3Mj603Qg;3N]72c@3QX;2]A1=2VB,2YI2Co1J2Fi1M2Je1Q3Nb703R]:2aA1<2XA,2<n1C2UI2Fn1M2Jj1Q3Nf703Q`903RX:,2[@1<2TB4YJ>l1E4UNBi1J2Ge3Mk703Pc803Q[9,2^?1;2XB2>q1E2Cn1J2Gj1M2Ic3Of70,3P^82b?1;2\\A1>2XF1C2UJ2Fm1M2Hf3Ni6,03Oa703Q[:3aB72W>1<2TC2?m2Fq1L2Gi3Ml5,03Ne703Q_:172\\>1<2XB2?q1E2WL2Fl,1L2Gd3Ni603Qd:172a?1;2\\B1>2VD2>k,2Eo1K2Gh1M2Ic1Q3N`703R\\;3aC62U=2YC2>o,1D2TJ2Fl1M2Jh1Q3Ne703R`:162Y<2\\B,1=2TC4XJ=j2Fp1M2Jm3QFc3Ni803Qc:152\\;2_A,1<2WB2>o1E2Bl1J2Gh1N2Jc3Qg903R^:,2b@1;2[B1>2VE2Cq1J2Gl1N2Jf3Pj80,3Qa803RZ;2_B1>4[F:o1C4XK?k2Fp1M2Ii1O2Ia,3Pd703R^:172Y>1<2VC2?p1F2Ai2Hl1M,2Hd3Oh703Qb:172^>1<2[C1?2UE2Al2Go,1L2Hg3Nl82Ia3Qg;3M]72e@3RZ;3`C72T>2YD2@o1E,2TK2Gk1M2Jf1Q3Nb703R^;172Y=2\\D1>,2TD4XK>i2Fo1M2Jj1Q3Ng703Rb;172\\<2`C1=,2WC2?n1F4VNBi1J2Gf1N2Kb3Rf:162_;15,2V<2ZB1?2TE2Bn1J2Gk1N2Kf1Q2L^3Rb:,152Z;2^B1>2YE1B2UJ2Go1N2Ji1P2Kb3Qd9,03R];172X>1;2TC2@n1G2Bi2Im1O2Jd,3Ph803Ra:172\\>1;2YC1@2UF2Bl2Hp1N,2Ig3Ol82J`3Qe:172a>1;4^C7q1?2XF2Ao1G2UN,2Hj1N2Jd1Q3N`703R];182X>2]F1@2TF,2@j2Gn1M2Jq1Q3Ne703Ra;172\\>192T?,2WE2@m1F4TMAf2Im3QEc3Nj82J`3Rf;172_=182W>,2ZD2?q1F2Bl1I2Gj1N2Ke1R3M_62b<17,2Z=2]C1?2WE2Bq1I2Gn1N2Ki1Q3Mb52e;16,2]<172V>4[F:o1B4XK?l1G4UOCh2Jl1Q2Le3Rh:,152`;172Z>1;2WB2@q1G2Cl2Ip1P2K_".split(",".toRegex()).toTypedArray()
            for (tys in years) {
                var ys = tys
                while (ys.isNotEmpty()) {
                    val len: Int = ys[0].code - '0'.code
                    val data = IntArray(len)
                    for (i in 0 until len) {
                        data[i] = ys[i + 1].code - '5'.code - 30
                    }
                    DAYS[y * 13 + m] = data
                    m++
                    ys = ys.substring(len + 1)
                }
                y++
                m = 0
            }
        }

        /**
         * 从藏历年月初始化
         *
         * @param year  藏历年
         * @param month 藏历月，闰月为负
         * @return 藏历月
         */
        @JvmStatic
        fun fromYm(year: Int, month: Int): RabByungMonth {
            return RabByungMonth(year, month)
        }

        @JvmStatic
        fun fromElementZodiac(rabByungIndex: Int, element: RabByungElement, zodiac: Zodiac, month: Int): RabByungMonth {
            return RabByungMonth(rabByungIndex, element, zodiac, month)
        }
    }
}